Johnson Controls TCN-890x User manual

Controls Group 507 E. Michigan Street
P.O. Box 423, Milwaukee, WI 53202
Code No. LIT-1900160
The performance specifications are nominal and conform to acceptable industry standards. For applications at conditions beyond these specifications, consult the local Johnson
Controls office. Johnson Controls, Inc. shall not be liable for damages resulting from misapplication or misuse of its products.© 08/02 Johnson Controls, Inc
1/2
tcn890xs 1900160 9thcc:na -pending Rev:
04/15/02
logo:
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standard
Sect# = 0
seQ# = 8
TCN-890x
Electronic Room Thermostat
tcb-890x cat01.tif
Description
The TCN-8900 Series is a family of analog
electronic controllers designed to control
heating and/or cooling valves or dampers.
The TCN-8901 has two 0 to 10 VDC
proportional outputs, one for heating and one
for cooling. The TCN-8906 has two On/Off
triac outputs, one for heating and one for
cooling, capable of switching 0.5 A at24 VAC.
The dual-scale setpoint dial enables the room
occupant to adjust the thermostat setpoint
within the range of 54 to 82°F (12 to 28°C).
Johnson Controls offers an optional Dial Stop
Screw Kit for applications where fixing or
limiting adjustment to the temperature range
is appropriate.
Features
• small, compact package provides similar
look and feel to the Metastat sensors
• local setpoint provides easy wiring and
installation
• globally scaled unit includes setpoint scale
in both Fahrenheit and Celsius ranges
54 to 82°F (12 to 28°C)
• universal quick-mount design saves time
and simplifies installation
• thermostat includes wallbox and surface
mounting plates and all installation
hardware to mount directly to drywall or a
standard U.S. wallbox
• models include an adjustable deadband:
- TCN-8901 has 0 to 10 VDC Reverse
Action (RA) and Direct Action (DA)
outputsthatfeatureseparateproportional
band adjustments
- TCN-8906 has two On/Off RA and DA
triac outputs that feature separate
differential adjustments
Applications
The TCN-8900 Series features separate
RA/DA outputs for automatic changeover of
heating and cooling applications.
To Order
Specify the code number in the following
selection chart.
Selection Chart
Note: Setpoint range: 54 to 82°
°°
°F (12 to 28°
°°
°C)
Accessories
Repair Parts
Code Number Description Outputs (2) Sensor
Input
TCN-8901-2161 Electronic
Room
Thermostat
0 to 10 VDC Analog RA
0 to 10 VDC Analog DA Built-in
TCN-8906-2161 On/Off RA Triac
On/Off DA Triac
Code Number Description
ACC-INSL-0 Foam Pad Kit for Wallbox Mounting (10 per package)
ACC-INSL-1 Foam Pad Kit for Surface Mounting (10 per package)
T-4000-119 Allen-Head AdjustmentTool (30 per package)
TM-9100-8901 Dial Stop Screws Kit (100 self-tapping screws per package)
TM-9100-8931 Plastic Surface Mounting Kit
Code Number Description
TE-67E0-600 Replacement End Caps (10 per package)
TE-67W-600 Wallbox Mounting Kit
Specifications
TCN-890x Series Electronic Room Thermostat
Power Requirements 24 VAC ±15% at 50/60 Hz, Class 2
Power Consumption 1.5 VA with No Load
Inputs Unoccupied Input Remove Factory-Installed Jumper on Screw
Terminal Block;
Fixed 9F°(5C°) Nominal Offset
RA/DA Remote Contact
Adjust-
ments
Set Point 54 to 82°F (12 to 28°C)
Dead Band 0 to 4F°(0 to 2C°)
Differential
(Model TCN-8906 Only) 0.4 to 4F°
(0.2 to 2C°) ;
Independent Adjustments for RA and DA
Outputs
Proportional
Band
(Model TCN-8901 Only) 2 to 7F°(1 to 4C°);
Independent Adjustments for RA and DA
Outputs
Output TCN-8901 Analog, 0 to 10 VDC, 10 mA Maximum;
Output Normal State is Off
TCN-8906 On/Off, Triac 24 VAC, 0.5 A Maximum;
Output Normal State is Off
Field Connections Screw Terminals for 24 to 14 AWG Wire
Mounting Standard Bases for Surface or U.S. Wallbox
Mounting, Including Hardware
Housing White Plastic Cover with Dark Gray Plastic
Mounting Base
Protection NEMA 1, IP30 (IEC 60529)
Ambient
Conditions
Operating 32 to 122°F (0 to 50°C) 10 to 95% RH
(Noncondensing)
Storage -4 to 158°F (-20 to 70°C) 10 to 90% RH
(Noncondensing)
Dimensions (H x W x D) 3.15 x 3.15 x 1.30 in. (80 x 80 x 33 mm)
Agency Listings
CE Compliance: EMC (89/336 EEC)
According to the Standard EN 50081-1 and
EN 50082-1
FCC and DOC Compliant

Controls Group 507 E. Michigan Street
P.O. Box 423, Milwaukee, WI 53202
Code No. LIT-1900160
The performance specifications are nominal and conform to acceptable industry standards. For applications at conditions beyond these specifications, consult the local Johnson
Controls office. Johnson Controls, Inc. shall not be liable for damages resulting from misapplication or misuse of its products.© 08/02 Johnson Controls, Inc
2/2
Dimensions (tcn-890x cat06.eps)
TCN-890x Cover Dimensions, in. (mm)
tcn-890x cat07.eps)
TCN-890x Base Dimensions, in. (mm)
tcn-890x cat08.eps)
TCN-890x Wallplate Dimensions, in. (mm)
65 70
60
55
75
80
20
16 24
12 28
C
F
Temperature
Scale
Setpoint
Dial
3.15 (80) 1.29 (33)
3.15
(80)
78911 12
10
12356
4UP
2.43 (61.7)
2.40
(60.9)
2.37 (60.3)
2.37
(60.3)
4.65
(118)
3.07 (78)
3.28
(83.4)
1.26 (32)
Wiring Diagrams tcn-890x cat02.eps
Wiring the TCN-8901, 0 to 10 V
0to10V
Heating
Actuator
0to10V
Cooling
Actuator Do Not Connect
TCN-8901
RA Output
Common
DA Output
RA/DA Input
Common
1
2
3
4
5
6
Sensor
Unoccupied Input
24 VAC
24 VAC Common
Do Not Connect
Common
Do Not Connect
Factory Installed Jumper
7
8
9
10
11
12
24 VAC
Internal Connection (Pins 4, 8, and 11)
Unoccupied
Contact
RA/DA Contact
tcn-890x cat03.eps
Wiring the TCN-8906, On/Off
Do Not Connect
TCN-8906
1
2
3
4
5
6
Unoccupied Input
24 VAC
RA Output
Common
DA Output
RA/DA Input
Common
Sensor
24 VAC
24 VAC Common
Do Not Connect
Do Not Connect
Factory Installed Jumper
Unoccupied
Contact
RA/DA Contact
7
8
9
10
11
12
24 VAC
On/Off
Heating
Actuator
On/Off
Cooling
Actuator
Internal Connection (Pins 1 and 4, 8 and 11)
Control Sequence Diagrams
tcn-890x cat04.eps
TCN-8901 0 to 10 VDC Control Sequence
tcn-890x cat05.eps
TCN-8906 On/Off Control Sequence
0%
100%
Output
DA
PB
Setpoint
RA
PB
DBDB
RA Output (Heating) DA Output (Cooling)
OccupiedOccupied
Temperature
Temperature
Temperature
UnoccupiedUnoccupiedUnoccupiedUnoccupied
Unoccupied Offset
Unoccupied Offset
Unoccupied Offset Unoccupied Offset
Unoccupied Offset
Unoccupied Offset
UnoccupiedUnoccupied
UnoccupiedUnoccupied OccupiedOccupied OccupiedOccupied UnoccupiedUnoccupied
DBDB DA
DIF
DA Output (Cooling)RA Output (Heating)
Temperature
Setpoint
RA
DIF
Off
On
Output
Unoccupied Offset
Unoccupied Offset
Unoccupied Offset Unoccupied Offset
Unoccupied Offset
Unoccupied Offset
TCN-890x Electronic Room Thermostat (Continued)